Home / 4,087.80-5,641.80-2,319.04

Finding the Fourth Proportional to 4,087.80, 5,641.80 and 2,319.04

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Solution

The fourth proportional to 4,087.80, 5,641.80 and 2,319.04 is: 3,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.80 : 5,641.80 = 2,319.04 : x
  2. Step 2: Convert to fraction form
    4,087.80/5,641.80 = 2,319.04/x
  3. Step 3: Cross multiply
    4,087.80x = 5,641.80 × 2,319.04
  4. Step 4: Simplify right side
    4,087.80x = 13,083,559.87
  5. Step 5: Solve for x
    x = 13,083,559.87/4,087.80
  6. Step 6: Final answer
    x = 3,200.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.